Data for "Extremely wet summer events enhance permafrost thaw for multiple years in Siberian tundra"
Permafrost thaw can accelerate climate warming by releasing carbon from previously frozen soil in the form of greenhouse gases. Rainfall extremes have been proposed to increase permafrost thaw, but the magnitude and duration of this effect are poorly understood. Here we present empirical evidence sh...
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ftdans:oai:easy.dans.knaw.nl:easy-dataset:234258 2023-05-15T15:06:16+02:00 Data for "Extremely wet summer events enhance permafrost thaw for multiple years in Siberian tundra" Magnússon, R. Í. (Wageningen University & Research) ORCID=0000-0003-2254-2612 Hamm, A. (Stockholm University) Magnússon, R. Í. (Wageningen University & Research), RightsHolder Hamm, A. (Stockholm University), RightsHolder June 2018 - August 2020 east=147.483333; north=70.816667; units=degrees; 2022-01-25 text/xml .r .csv .exo .h5 application/x-cmdi+xml http://nbn-resolving.org/urn:nbn:nl:ui:13-e1-t4yg https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:234258 en eng http://nbn-resolving.org/urn:nbn:nl:ui:13-e1-t4yg doi:10.17026/dans-xdt-tf9f https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:234258 OPEN_ACCESS http://creativecommons.org/licenses/by/4.0 R. Í. Magnússon (Wageningen University & Research) A. Hamm (Stockholm University) CC-BY Geochemistry geophysics Environmental studies Ecology Soil Surfacewater and groundwater Nature and landscape effect of summer rainfall on permafrost thermal regime Dataset 2022 ftdans https://doi.org/10.17026/dans-xdt-tf9f 2022-03-09T23:13:16Z Permafrost thaw can accelerate climate warming by releasing carbon from previously frozen soil in the form of greenhouse gases. Rainfall extremes have been proposed to increase permafrost thaw, but the magnitude and duration of this effect are poorly understood. Here we present empirical evidence showing that one extremely wet summer (+100mm; 120% increase relative to average June – August rainfall) enhanced thaw depth by up to 35% in a controlled irrigation experiment in an ice-rich Siberian tundra site. The effect persisted over two subsequent summers, demonstrating a carry-over effect of extremely wet summers. Using soil thermal hydrological modelling, we show that rainfall extremes delayed autumn freeze-up and rainfall-induced increases in thaw were most pronounced for warm summers with mid-summer precipitation rainfall extremes. Our results suggest that, with rainfall and temperature both increasing in the Arctic, permafrost will likely degrade and disappear faster than is currently anticipated based on rising air temperatures alone. Dataset Arctic Ice permafrost Tundra Data Archiving and Networked Services (DANS): EASY (KNAW - Koninklijke Nederlandse Akademie van Wetenschappen) Arctic |
institution |
Open Polar |
collection |
Data Archiving and Networked Services (DANS): EASY (KNAW - Koninklijke Nederlandse Akademie van Wetenschappen) |
op_collection_id |
ftdans |
language |
English |
topic |
Geochemistry geophysics Environmental studies Ecology Soil Surfacewater and groundwater Nature and landscape effect of summer rainfall on permafrost thermal regime |
spellingShingle |
Geochemistry geophysics Environmental studies Ecology Soil Surfacewater and groundwater Nature and landscape effect of summer rainfall on permafrost thermal regime Magnússon, R. Í. (Wageningen University & Research) ORCID=0000-0003-2254-2612 Hamm, A. (Stockholm University) Data for "Extremely wet summer events enhance permafrost thaw for multiple years in Siberian tundra" |
topic_facet |
Geochemistry geophysics Environmental studies Ecology Soil Surfacewater and groundwater Nature and landscape effect of summer rainfall on permafrost thermal regime |
description |
Permafrost thaw can accelerate climate warming by releasing carbon from previously frozen soil in the form of greenhouse gases. Rainfall extremes have been proposed to increase permafrost thaw, but the magnitude and duration of this effect are poorly understood. Here we present empirical evidence showing that one extremely wet summer (+100mm; 120% increase relative to average June – August rainfall) enhanced thaw depth by up to 35% in a controlled irrigation experiment in an ice-rich Siberian tundra site. The effect persisted over two subsequent summers, demonstrating a carry-over effect of extremely wet summers. Using soil thermal hydrological modelling, we show that rainfall extremes delayed autumn freeze-up and rainfall-induced increases in thaw were most pronounced for warm summers with mid-summer precipitation rainfall extremes. Our results suggest that, with rainfall and temperature both increasing in the Arctic, permafrost will likely degrade and disappear faster than is currently anticipated based on rising air temperatures alone. |
author2 |
Magnússon, R. Í. (Wageningen University & Research), RightsHolder Hamm, A. (Stockholm University), RightsHolder |
format |
Dataset |
author |
Magnússon, R. Í. (Wageningen University & Research) ORCID=0000-0003-2254-2612 Hamm, A. (Stockholm University) |
author_facet |
Magnússon, R. Í. (Wageningen University & Research) ORCID=0000-0003-2254-2612 Hamm, A. (Stockholm University) |
author_sort |
Magnússon, R. Í. (Wageningen University & Research) ORCID=0000-0003-2254-2612 |
title |
Data for "Extremely wet summer events enhance permafrost thaw for multiple years in Siberian tundra" |
title_short |
Data for "Extremely wet summer events enhance permafrost thaw for multiple years in Siberian tundra" |
title_full |
Data for "Extremely wet summer events enhance permafrost thaw for multiple years in Siberian tundra" |
title_fullStr |
Data for "Extremely wet summer events enhance permafrost thaw for multiple years in Siberian tundra" |
title_full_unstemmed |
Data for "Extremely wet summer events enhance permafrost thaw for multiple years in Siberian tundra" |
title_sort |
data for "extremely wet summer events enhance permafrost thaw for multiple years in siberian tundra" |
publishDate |
2022 |
url |
http://nbn-resolving.org/urn:nbn:nl:ui:13-e1-t4yg https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:234258 |
op_coverage |
June 2018 - August 2020 east=147.483333; north=70.816667; units=degrees; |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Ice permafrost Tundra |
genre_facet |
Arctic Ice permafrost Tundra |
op_relation |
http://nbn-resolving.org/urn:nbn:nl:ui:13-e1-t4yg doi:10.17026/dans-xdt-tf9f https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:234258 |
op_rights |
OPEN_ACCESS http://creativecommons.org/licenses/by/4.0 R. Í. Magnússon (Wageningen University & Research) A. Hamm (Stockholm University) |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.17026/dans-xdt-tf9f |
_version_ |
1766337908780826624 |